New Delhi (CNN)Indian Prime Minister Narendra Modi has urged his Pakistani counterpart to investigate the deadly attack by militants on the Pathankot airbase in India, according to a statement released Tuesday.

"Prime Minister Modi strongly emphasized the need for Pakistan to take firm and immediate action against the organizations and individuals responsible for and linked to the Pathankot terrorist attack," the statement said. "Specific and actionable information in this regard has been provided to Pakistan."

Pakistani Prime Minister Muhammad Nawaz Sharif said his nation would investigate the leads and information provided by India.

A statement from Sharif's office pointed out to the Indian PM "that whenever a serious effort to bring peace between two countries was underway terrorists try to derail the process."

An umbrella group of Kashmiri militants, the United Jihad Council, had claimed responsibility for the Saturday attack. Seven security personnel, one civilian and six militants were killed, authorities said.

Read More

The two prime ministers talked on the phone Tuesday. Sharif's office said he "conveyed his sadness and grief." Modi's office said Sharif promised "prompt and decisive action."

Indian Defense Minister Manohar Parrikar said Tuesday at a news conference held on the base that the battle with militants had ended.

When asked about possible Pakistani connections, Parrikar said, "There are some indications that some of the material seized was made in Pakistan. Investigations are under way."